YG100R_Mainte_E.pdf - 第44页

3-6 3 Periodic maintenance items 4 B l o w a i r i n t o t h e s p l i n e s h a f t . P r e s s t h e [ B l o w ] b u t t o n f o r e a c h h e a d o n t h e [ U n i t ] - [ H e a d ] t a b s c r e e n . T h e i n s i d…

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3
Periodic maintenance items
1.2.2 Cleaning the FNC nozzle assembly
1
Disassemble the FNC nozzle
assembly.
Use the Phillips screwdriver (No.0 or No.00) to
remove the nozzle mounting screws, and
remove the nozzles and springs from the FNC
nozzle assembly.
53344-F9-00
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CAUTION
The screwdriver bit size may slightly differ between
manufacturers. Use the screwdriver that matches the
recessed pattern on the screw head.
Take care not to lose the small spring inserted in the
spring-action nozzle.
2
Clean the parts with alcohol.
Immerse the nozzles, springs, nozzle brackets,
nozzle block, bevel gear and shaft and
standard nozzles in alcohol. Leave these
parts immersed in alcohol for about 3 to 5
minutes. In the meantime, clean the nozzle
shaft hole as explained in step 3.
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CAUTION
Do not put the O-ring of the nozzle into alcohol. The
O-ring may stretch and become unusable when
immersed in alcohol.
3
Clean the nozzle shaft hole of the
FNC assembly.
While the parts are immersed in alcohol in
step 2, clean the index holder nozzle shaft
hole of the FNC heads as follows.
1. Clean the nozzle shaft hole with a cotton
swab moistened with alcohol and blow
air with an air blow gun (KU4-M8590-00X).
2. Brush the bevel gear of the index holder
with a toothbrush moistened with alcohol
and blow air with the air blow gun
(KU4-8590-00X).
53345-F9-00
53346-F9-00
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CAUTION
Use lint-free cotton swabs that do not leave residue.
Disassembled FNC parts
Step 1
Nozzle bracket
Nozzle block
Spring
Nozzle tip
Type 211F
Type 212F
Type 213F
Type 211F
Type 212F
Type 213F
Cleaning the index holder nozzle shaft hole
Step 3-1
Index holder
Cotton swab moistened with alcohol
Cleaning the index holder nozzle shaft hole
Step 3-2
Clean the bevel gear with
a toothbrush moistened with alcohol
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3
Periodic maintenance items
4
Blow air into the spline shaft.
Press the [Blow] button for each head on the
[Unit]-[Head] tab screen. The inside of the
spline shaft is then blown with air.
54304-F9-00
5
Take the parts out of the alcohol
container and clean them.
1. Clean the hole of the nozzle block by
passing the cleaning wire through it.
2. Clean the bevel gear, hole and surface
with a cleaning cloth, toothbrush and
cotton swab.
3. Clean the inside of the pinhole (air path)
in the middle of the bevel shaft by
passing the cleaning wire through it and
also wipe the shaft surface with a
cleaning cloth.
4. Clean other parts with cloth.
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53349-F9-00
53350-F9-00
6
Blow air onto the cleaned parts.
Use the air blow gun (KU4-M8590-00X) to
blow air sufficiently onto the cleaned parts.
7
Check that the nozzles were
cleaned.
• If the nozzle tip is still clogged, reclean it
with alcohol or cleaning wire (KV8-
M8883-A0X).
• If the nozzle tip is nicked or foreign
matter cannot be removed, replace the
nozzle with a new one.
8
Reassemble the FNC nozzles.
Put the nozzle parts back together.
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CAUTION
Do not forget to insert the spring back in place.
Step 4
Blowing airinto spline shaft
[Blow] button
Cleaning the nozzle block
Step 5-1
Nozzle block
Cleaning wire
Cleaning the bevel gear
Step 5-2
Bevel gear
Clean the bevel bear hole
with cotton swab
Cleaning the bevel gear shaft
Step 5-3
Bevel gear shaft
Clean the air path hole
in the middle of shaft.
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3
Periodic maintenance items
9
Clean the slide section.
Apply IPA (isoprophyl alcohol) or ethanol to
the slide section. Push the nozzle tip several
times to repeat the buffing action (spring
action) to clean the slide section. After
cleaning, blow sufficient air to remove IPA or
ethanol.
0
Lubricate the slide section.
Using a precision screwdriver or similar tool
with a pointed tip, apply a small amount of
turbine oil (just enough so that it sinks in) to
the slide section.
53305-F9-00
q
Check the buffing action (spring
action).
Push the nozzle tip several times to repeat
the buffing action and spread turbine oil.
Use a lint-free cleaning cloth to wipe away
excess oil from around the nozzle.
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Remove excess oil remaining in the
nozzle.
Using an air blow gun, blow air for about 5
seconds from the nozzle tip, and for about 5
seconds from the nozzle attachment side.
Repeat this process a few times to remove
excess turbine oil remaining in the nozzle.
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NOTE
A thin coat of oil is enough to lubricate the slide section.
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Check that the oil was removed.
Blow air through the nozzle again while
placing commercially-available oil blotting
paper over the opposite end of the nozzle,
and check for residual oil in the nozzle.
n
NOTE
Performing step 12 is usually sufficient to remove oil
remaining in the nozzle. However, if oil still remains then
blow air through the nozzle once again.
53307-F9-00
Lubricating the slide section
Step 10
Nozzle
Precision screwdriver
(with a small amount of turbine oil applied)
Step 11
Checking the spring action
Spring action at nozzle tip
Step 13
Checking for residual oil
Oil blotting paper
Oil will appear after blowing air (first
time) for about 5 seconds from the
nozzle tip.
Repeat the air blow for about 5
seconds each from the nozzle tip
and from the attachment side.
This task is finished when oil no
longer appears.